Sole molding and trimming device



Jan. 12 1926.

s. \(ANNONI SOLE MOLDING AND TRIMMING DEVICE Fi led August 1 1925 A TTORNE Y.

'has for its object to provide a device of Patented J n. 12, 1926.

1 Mrs sT refs 1 envo VANNONI, or MISHAWAKA, INDIANA. I

i some MOLDING AND ran/mine nnvrcn.

- Application filerl August 1, 1925; Serial No. 47,541.

To all whomit may concern: 7 I Be it known that I, GINO VANNONI, a cit1- zen of the United States, residing at Misha- \vaka, in'the county of St. Joseph and State of lndiana, have invented certain new and useful Improvements in Sole Molding and Trimming Devices, of [which the following is a specification.

'The invention relates to sole molding and trimming devices, particularly of the type for molding and trimming rubber soles and this character comprising a base having a cavity therein of the size and shape of the sole to be molded, and in whicha piece .of rubber stock is placed and pressed by a presser plate to fill the cavity for formingthe sole, which is thenvulcanized to maintain the same in shape. It has'been found during this operation that the excess material is forced outwardly along the marginal edge of the sole between the base plate and the presser plate, and the present practice is to trim this by hand, or by a cutter 1n combination with the mold, however where the hand cutting is involved there is considerable labor expended, and where the mold cutter is used, the web is entirely severed by engaging cutting edges, and which edges become dull incident totheirengagement. To obviate the above difficulties the under side of the presser block is provided with means for. receiving and holding a cutter plate, which is removed during the pressing operation, thereby allowing the under side of the presser plate'to be used for a pressing surface. v

A further object is to provide a cutter plate with limiting means cooperating with the base plate for preventinglthe cutting edge thereof from coming entirely in engagement with the base plate cutting. edge, there 'bypreventing drilling of the cutting edges,

but at the same, timesevering the web to a point where it can be easily and quickly removed'from the sole. V

A further object is to provide the underside of thepresser plate with means for holding the cutter plate with its cutting edges in registration withthe cutting edges of the base plate.

Vs ith the above and other objects in View the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in be madewithin the scope of what is claimed without departing from the spirit of the invention. In the drawing plate. I a

Figure 2 is a view in elevation of the base plate, parts being broken away to better show the structure.

' the precise embodiment of the invention may Figure l" is a side elevation of the press Figure 3, isaiview' in elevation of the cutter plate partly broken away to better show the structure. a I

Figure 4: is a view in elevation ofjthe-mold,

7O 7 showing the cutter plate in position andp'art broken y to e ter show the structurej f ,Referring to the drawing, the numeral 1 designates the base plate and2 the presser plate of the mold. The base plate 1 is pro' vided with a cavity 2 of the shape of the sole tobe formed, and which cavity is provided with an upwardly extending marginal cutting edge 3. When it. is desired to'form a rubber sole 4, a piece of rubberstock 4*" is placed inthe cavity 2 and then the presser plate 2 is placed on the base 1 with the upwardly extending lugs 5 extending throughthe apertures 6 of the presser plate. The moldis then placed in a press and'the presser plate 2 is forced downwardly into engagement with the rubber stock 4? against l the action of the coiled springs 7 whichsur-- rou'nd'tl'ie' lugs 5. The pressing operation spreads the rubber stock P and fills the cavity 2 however the excess rubber stock], will be forced outwardly over the cutting edge. 3 between the cutting edge and the underside 8 of the presser block, thereby forming what isgknown as a web 9?, which has to be removed. After the pressing op-' eration the mold is placed in a. vulcanlzer for a vulcanizing operation. Heretoforein molds, the webs have been manually-severed after the vulcanizing operation, or cutters provided in connectlon with the mold, however where there is a manual cutting of the 'web considerable labor is ezipended and where Lot. labor.

operation. 'Ifhe guide members 9 are positioned, whereby-when the plate. 10 is placed thereon its cutting edge 11 registerswith the cutting edge 3 ot' the base plate 1. therefore it will be seen that when pressure is applied to the presser plate 2. the cutting edges 11 and 3 will lie-forced towards each other tor severing or partially severing the web 9. However to prevent the cutting edges 11, and 3 from coming into engagement with each other, butat the same time allow the sides of the. soleand the webs to be substantially severed without engagement Not the cutting edges the cutter plate 10 is provided. with downwardly. extending. lugs 12, which engz I the upper side of the base plate receiving cavity in the base plate, a presser 1,..and limit the. downward lnoveinentot the cutter pla te to ztfipOSltlOlLWllGl't; its cutting edge 11 will be relatively close to the cutting edge 3 without engaging the same. After the ,web cutting operation it is obvious. the web can be easily and quickly removed. from .the :sole without involving any material amount with the .under side of a .presserplatc of a SQlGJnOlCl, thereby allowing the under side o't the 1)]?68581'113lr1l'6 to be used for pressing stock totorin in the mold, and: the holding also be seenthat limiting means is provided t in connection wit-bathe. cutter plate tor, preveuting the severing edges from engaging each other, thereby drilling and damaging the same. i

The invention having been set forth what is clainicdas new'anduseful is 1- 1. The combination with a sole .inolding and cutting mold comprising a base; plate, a presser plate. a cutting edge surrounding plate above thebase, plate of cutter receiving means carriedby the underside of the presser plate and positioned whereby it Will not interfere with the pressing operation when the resser plate is forced downwardly towards "the base plate.

at. The. combination with a sole forming mold comprising a baseplate, a presser plate above the base plate, a. cutting edge carried by the base plate andisurrounding a cavity in the base plate. Ota i removable cutter earried by, the under side of thempresserwplatc and cooperating with the cutting edge carried by the base plate whereby. Webs maybe sevened: tron'ra. sole.

5. The combination witlua solecforn ing and molding device comprising. a base. plate, a. presserplate.means for guid ng said plates in relation tofeaclr other, ol a cutter plate carried by the under side of the presser plate and removably attached thereto, .acutting edge ,carriedby the cuttergnplate antladapted to sever .WGbS from a: sole formed in the cavity in thebase. plate, and means carried by; the cutterplate and co.-.ope;rating with the base plate for limiting the downward movement of the cutter plate.

6. The combinatiouwith a. sole forming .lllOld comprising a base 1 plate having an neans tor the removable cutter will not :in- 1' tenferc with the qn essing operation. It will upwardly extending cutting: edge forming. a

stock receiving cavity, a .presser. plate above the cutter plate and 3 cooperating .withthe a stock -receiving cavity carried by the.

, base plate and with which the adjacent aisole forming operation, of cutter ireceiv- .ing members carried by the-adjacentside ot the .presser plate and positioned .whereby they ,will not interfere with the pressing operation.

The, combination with a. sole mold c0n1- aprising, a base plate having a stock receiving m h the. underside. of the, presser 1 plate cooperating with; the baseplate' during a sole tormng operation, vot cutter receiving :D'IEELIIS carriectby the underside of the press plate and positioned whereby it will not interfere with th ipressing operatio lThe combination with a isole forming web cutting operation.

base plate. tor limiting the downward movement ot' thecutter plate, whereby .the cutting e will be. prevented from coming into. engagement .with each other during 7. Thecon'1binatiOn within sole forming mold comprising a base plate having an .upwardly extending web cut-ting --=fiange, a

presser plate guidablein relation. to thekbase .plate,.ot.a removable cutter plate carried by the underside of the .presser plate, a cutter v,a presser plate above the base plate,.

cooperating with the base. plate cutting edge and carried by the cutterplate, cuttenplate receiving channels carried by. the underside of the, presser, plate and .disposed at opposite sides of the cutter edge. carriedvby the base plate, and members carriedby ibl16?0l?llil9l .plate and cooperating withthe base plate mold comprising a, base plate, an upwardly extending cutting edge surrounding a stock for limiting the downward movement ofrthe cutter; .plate and preventing the; cutting edges from engaging each other.

.111 testimony whereof I .afiix .my signature.

GINO VANNONI. 

